Home / 25,571.52-38,295.36-21,156.48

Finding the Fourth Proportional to 25,571.52, 38,295.36 and 21,156.48

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Solution

The fourth proportional to 25,571.52, 38,295.36 and 21,156.48 is: 31,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.52 : 38,295.36 = 21,156.48 : x
  2. Step 2: Convert to fraction form
    25,571.52/38,295.36 = 21,156.48/x
  3. Step 3: Cross multiply
    25,571.52x = 38,295.36 × 21,156.48
  4. Step 4: Simplify right side
    25,571.52x = 810,195,017.93
  5. Step 5: Solve for x
    x = 810,195,017.93/25,571.52
  6. Step 6: Final answer
    x = 31,683.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.